Singapore does not stamp passports upon exit, for example [2]. Here's a list from 2017 of other countries that don't stamp passports upon entry [1]. [1] https:

Singapore does not stamp passports upon exit, for example [2]. Here's a list from 2017 of other countries that don't stamp passports upon entry [1]. [1] https://travelupdate.com/countries-do-not-issue-a-passport-stamp-upon-entry/ https://travelupdate.com/countries-do-not-issue-a-passport-s... [2] https://www.straitstimes.com/singapore/passport-stamps-no-longer-needed-to-exit-singapore https://www.straitstimes.com/singapore/passport-stamps-no-lo...